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285090334 = 215725783
BaseRepresentation
bin10000111111100…
…010001000011110
3201212110002102021
4100333202020132
51040440342314
644142250354
710031141104
oct2077421036
9655402367
10285090334
11136a20651
127b5869ba
13470aa609
1429c11c74
151a066324
hex10fe221e

285090334 has 12 divisors (see below), whose sum is σ = 430451064. Its totient is φ = 141612744.

The previous prime is 285090319. The next prime is 285090367. The reversal of 285090334 is 433090582.

It is a happy number.

285090334 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 285090334.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 46407 + ... + 52189.

It is an arithmetic number, because the mean of its divisors is an integer number (35870922).

Almost surely, 2285090334 is an apocalyptic number.

285090334 is a deficient number, since it is larger than the sum of its proper divisors (145360730).

285090334 is an equidigital number, since it uses as much as digits as its factorization.

285090334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6099 (or 5942 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 285090334 is about 16884.6182663393. The cubic root of 285090334 is about 658.1539583016.

The spelling of 285090334 in words is "two hundred eighty-five million, ninety thousand, three hundred thirty-four".

Divisors: 1 2 157 314 5783 11566 24649 49298 907931 1815862 142545167 285090334